Crystal Units
1904A_RC-8_e
RC-8 / NC-18C
For High Precision Industry
■
Specications
A highly reliable crystal unit with outstanding frequency stability
and covering a broad frequency range.
● The product satises strict temperature characteristics standards,
is shock resistant and has excellent frequency reproducibility.
■
Features
mm
15.60 dia max
12.85 dia max
4.80 max
5-0.45+0.03/-0.05 dia
6.3+/-0.5
7.16+/-0.1
2.54+/-0.1
45 deg
Ground lead
#1 X’tal lead
#2 N/C lead
#3 X’tal lead
#4 N/C lead
#5 Ground lead
#2
#4
#1
#5
#3
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Dimensions
mm
10.10 max.
5.00max.
3.55max.
11.45max.
4.88+/-0.20
Glas s
Me tal
Glas s
Me tal
8.00min.
2. 00min
0.89
13.46max.13. 2+/-1
0.43-0.03dia.
+0.05
Please specify the model name, frequency, and specication number when you order products.
For further questions regarding specications, please feel free to contact us.
Item
Model
RC-8
Nominal Frequency 5 to 20 MHz
Overtone Order 3rd overtone
Operating Temperature Range –40 to +120°C
Storage Temperature Range –55 to +125°C
Turnover point +70 to +110°C
Frequency Tolerance
(at middle of turnover point)
Max. ±3 × 10
–6
Equivalent Series Resistance Max. 150Ω
Level of Drive Max. 100 μW
Load Capacitance Series to 32 pF
Specications Number STD-CWB-2
Item
Model
NC-18C
Nominal Frequency 10 to 20 MHz
Overtone Order 3rd overtone
Operating Temperature Range –40 to +120°C
Storage Temperature Range –55 to +125°C
Turnover point +70 to +110°C
Frequency Tolerance
(at middle of turnover point)
Max. ±3 × 10
–6
Equivalent Series Resistance Max. 150Ω
Level of Drive Max. 100 μW
Load Capacitance Series to 32 pF
Specications Number STD-CWB-1
RC-8 NC-18C
Directive 2011/65/EU
Directive (EU) 2015/863
RC-8 NC-18C